If I remember correctly Mormons also baptist ancestors - their own and others. I'm guessing this is what Gamecock is referring to.
So the comparison breaks down on several counts.
If I remember correctly Catholics do penance for their ancestors in order to get them released from purgatory and Mormons baptize their ancestors in order to get them released from purgatory, so the comparison appears to be quite apropos.
That a fact?? Let's take a little test and see:
1. Which of the following claims to be THE One True Church?
A. Roman Catholicism
B. Mormonism
C. A and B
2. Which claims a unique and authoritative priesthood?
A. Roman Catholicism
B. Mormonism
C. A and B
3. Which adds books to the Holy Bible?
A. Roman Catholicism
B. Mormonism
C. A and B
4. Which undermines the power of Jesus’ blood by its view of personal suffering for the purging of sins?
A. Roman Catholicism
B. Mormonism
C. A and B
5. Which sings praise songs to/about non God-Head members?
A. Roman Catholicism
B. Mormonism
C. A and B
6. Which has non-Biblical doctrines regarding marriage?
A. Roman Catholicism (priests and marriage)
B. Mormonism (Polygamy)
C. A and B
7. Which believes in God has a mother:
A. Roman Catholicism
B. Mormonism
C. A and B
8. Which claims the head of their group speaks infallibly at times:
A. Roman Catholicism
B. Mormonism
C. A and B
9. Which redefines “saint” to something other than a bible-defined child of God:
A. Roman Catholicism
B. Mormonism
C. A and B
10. Which has a scheme that will get some into Heaven from some sort intermediate state:
A. Roman Catholicism
B. Mormonism
C. A and B
Extra credit:
Which group has doctrine that changes from Bishop/Pope to Bishop/Pope and evolves over time?
A. Mormonism
B. Roman Catholicism
C. A and B